I called it in part when I said a few chapters ago that the protagonist might be the antagonist, due to one of the copies texting that the ones who hatch from eggs are the most dangerous… but of course I had no idea he might be the one who started the "apocalypse". So does that mean that Eun Woo is a mimic of such perfection that she isn't even aware of it?
One thing: the original seems to have some degree of control over the fake humans at least, as intimated by the scene back when the social media-obsessed copy was blinded by tear gas and the original made the mimics retreat. This chapter may have explained why.
Another thing: some copies seem to somehow work to undermine the original's plan. Not knowing they're copies, they even come to the conclusion that the ones hatched from eggs are the most dangerous and one tried to warn the world about them. This may come to bite the original in the arse later.
Also: I think Eun Woo will die… maybe she'll sacrifice herself to remove the original's motivation to live or something.